kitio.aiShopify Sidekick vs RetentionX
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Shopify Sidekick has the lower starting price: about $39 a month, against $49 for RetentionX.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Store data questions
- Product description writing
- Flow automation builder
- Reports and analytics
- Custom app generation
- AI Analyst briefings
- Customer segmentation
- Server-side tracking
- Attribution models
- AI merchandising
| Feature | Shopify Sidekick | RetentionX |
|---|---|---|
| Best for | AI commerce assistant built into the Shopify admin | Customer analytics, attribution and AI insights for online stores |
| Category | Legal, finance & HR | Legal, finance & HR |
| Pricing model | Free trial | Free trial |
| Starting price | $39/mo | $49/mo |
| Free plan | No, 3-day trial | No, 30-day trial |
| Made by | Shopify | RetentionX |
| Based in | Canada | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Shopify Sidekick has the lower starting price: about $39 a month, against $49 for RetentionX.
Free plan
Cheapest paid plan
Top plan
Free trial
4 plans
Basic
$39/mo
- Sidekick AI assistant included
- For solo entrepreneurs
- 2% 3rd-party payment fee
Grow
$105/mo
- Everything in Basic
- Up to 5 staff accounts
- 1% 3rd-party payment fee
Advanced
$399/mo
- Everything in Grow
- Up to 15 staff accounts
- Live 3rd-party shipping rates
Plus
From $2,300/mo
- Unlimited staff accounts
- Fully customizable checkout
- 0.2% 3rd-party payment fee
3 plans
Starter
$49/mo
- Under $250k annual revenue
- Insights, reports and segments
- Select automations
Core
$149/mo
- RX Identity tracking
- Marketing intelligence
- Higher audience limits
Growth
$249/mo
- AI predictive modelling
- Higher limits
- Dedicated Slack support
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Shopify Sidekick
- Included with Shopify plans
- Uses live store data
- Reviews changes before applying
- Only works for Shopify stores
- Complex tasks still need apps
- Answers can be generic
RetentionX
- 30-day free trial
- Deep cohort and LTV reporting
- Tracking that does not rely on browser cookies
- Price rises with store revenue
- Predictive modelling only on Growth
- Broad toolset takes time to set up
Which one should you choose?
Choose Shopify Sidekick if you want:
- Included with Shopify plans
- Uses live store data
- Reviews changes before applying
Watch out: only works for shopify stores.
Choose RetentionX if you want:
- 30-day free trial
- Deep cohort and LTV reporting
- Tracking that does not rely on browser cookies
Watch out: price rises with store revenue.
Shopify Sidekick vs RetentionX FAQ
What is the difference between Shopify Sidekick and RetentionX?
Shopify Sidekick: AI commerce assistant built into the Shopify admin. RetentionX: Customer analytics, attribution and AI insights for online stores. Both are legal, finance & hr tools.
Is Shopify Sidekick or RetentionX cheaper?
Shopify Sidekick has the lower starting price: about $39 a month, against $49 for RetentionX.
Do Shopify Sidekick and RetentionX have free plans?
Shopify Sidekick: No, 3-day trial. RetentionX: No, 30-day trial.
Who makes Shopify Sidekick?
Shopify Sidekick is made by Shopify, based in Canada.
Who makes RetentionX?
RetentionX is made by RetentionX.
Which should I choose, Shopify Sidekick or RetentionX?
Choose Shopify Sidekick if you value included with shopify plans and uses live store data. Choose RetentionX if you value 30-day free trial and deep cohort and ltv reporting.